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arXiv · 1106.0353

Quantum fluctuation theorem for heat exchange in the strong coupling regime

L. Nicolin·D. Segal
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Abstract

We study quantum heat exchange in a multi-state impurity coupled to two thermal reservoirs. Allowing for strong system-bath interactions, we show that a steady-state heat exchange fluctuation theorem holds, though the dynamical processes nonlinearly involve the two reservoirs. We accomplish a closed expression for the cumulant generating function, and use it obtain the heat current and its cumulants in a nonlinear thermal junction, the two-bath spin-boson model.

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L. Nicolin, D. Segal. 2011-06-02. Quantum fluctuation theorem for heat exchange in the strong coupling regime. https://doi.org/10.1103/physrevb.84.161414

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